Rohde & Schwarz FSWP Series - Page 45

Configuration
R&S
®
FSWP
45User Manual 1177.5856.02 ─ 07
Note: Even when the file input is disabled, the input file remains selected and can be
enabled again quickly by changing the state.
Remote command:
INPut<ip>:SELect on page 108
Select I/Q data file
Opens a file selection dialog box to select an input file that contains I/Q data.
The I/Q data must have a specific format (.iq.tar) as described in Chapter A.3, "I/Q
Data File Format (iq-tar)", on page 154.
The default storage location for I/Q data files is C:\R_S\INSTR\USER.
Remote command:
INPut<ip>:FILE:PATH on page 106
File Repetitions
Determines how often the data stream is repeatedly copied in the I/Q data memory to
create a longer record. If the available memory is not sufficient for the specified num-
ber of repetitions, the largest possible number of complete data streams is used.
Remote command:
TRACe:IQ:FILE:REPetition:COUNt on page 110
5.3.2 Outputs
Access: "Overview" > "Output"
The output supported by the I/Q Analyzer are similar to those in the Phase Noise
Spectrum applications.
For a comprehensive description on how to configure the DC Power sources and the
Signal Source, refer to the documentation of the R&S FSWP.
Noise Source Control....................................................................................................45
Trigger 1/2.....................................................................................................................46
└ Output Type ................................................................................................... 46
└ Level .................................................................................................... 47
└ Pulse Length ........................................................................................47
└ Send Trigger ........................................................................................ 47
Noise Source Control
The R&S FSWP provides a connector ("NOISE SOURCE CONTROL") with a 28 V
voltage supply for an external noise source. By switching the supply voltage for an
external noise source on or off in the firmware, you can enable or disable the device as
required.
External noise sources are useful when you are measuring power levels that fall below
the noise floor of the R&S FSWP itself, for example when measuring the noise level of
an amplifier.
Configuring Data Inputs and Outputs